Mohawk Deckled Ultrafelt and Mohawk Options Envelopes and Cardstock are featured as an environmentally friendly choice. Many Mohawk envelopes are Green Seal Certified and 100% post consumer waste (PCW) recycled content. Not only was Mohawk the first US paper Mill to use coated paper made from postconsumer waste fiber, but they also use wind power to generate 100% of the electricity used in paper production. 65# Cover / 177 gsm